A) immunity B) evolution C) heredity D) differentiation
A) environment of the organism B) type and order of amino acids C) availability of starch molecules D) nutritional habits of the organism
A) differentiation B) selective breeding C) cloning D) gene insertion
A) coiled strands of genetic material B) large molecules that have only one function C) folded chains of bonded glucose molecules D) reproductive cells composed of molecular bases
A) asexual reproduction B) genetic engineering C) natural selection D) habitat modification
A) The gene for insulin is turned ON in liver cells, but the gene for testosterone is not B) The gene for insulin is replicated in vacuoles, while the gene for testosterone is replicated in mitochondria C) The gene for insulin is a sequence of five different molecular bases while the gene for testosterone is a sequence of only four differentmolecular bases. D) The gene for insulin has a different sequence of molecular bases than the gene for testosterone.
A) some of the DNA in some of the cells will be removed by chemical reactions B) different groups of cells containing the DNA may be exposed to different environmental conditions, for example, more food for one but not the other C) only the DNA in certain cells will replicate D) DNA is functional in only 10% of the cells of the body
A) fertilization → mitosis → meiosis B) meiosis → fertilization → mitosis C) mitosis → fertilization → meiosis D) fertilization → meiosis → mitosis
A) meiotic cell division B) recombination C) mitotic cell division D) zygote formation
A) replication and cloning B) the need to adapt and maintain homeostasis C) sorting and recombining of genes in meiosis D) overproduction of offspring and competition
A) solved the reproductive problems of the species by asexual methods B) increased the genetic variability of the panther population in Florida C) mated only with panthers from Texas D) produced more reproductive cells than the male panthers in Texas
A) increased variation in the type of organelles present in the cell B) an adaptation that will be passed on to other types of cells in the body C) a mutation that will affect the synthesis of a certain protein in the cell but not the offspring D) rapid evolution of the organism in which the cell is found
A) fusion of eggs and sperm to produce zygotes B) meiosis to produce gametes C) mitosis to produce a larger population D) internal fertilization to produce an embryo
A) oranges without seeds, only B) a majority of oranges with seeds and only a few oranges without seeds C) oranges with seeds, only D) oranges and other kinds of fruit
A) It is affected primarily by the eating habits and general health of the father. B) It will not be affected by any medication taken by the mother C) It is affected primarily by the eating habits and general health of the mother. D) It is not affected by conditions outside the embryo.
A) The cells produced by a zygote usually have different genes. B) Offspring have a combination of genes from both parents. C) Replicated chromosomes separate during gamete formation. D) As an embryo develops, various tissues and organs are produced.
A) a virus aimed to cure cancer that mutates and causes humans to become monster-like B) a dog named Samantha and how she helps her owner overcome obstacles C) the strange effects mannequins can have on people D) a cancer that mutates and becomes elegant and beautiful
A) usually lead to the death of the organism B) lead to more serious mutations in offspring C) cannot be passed on to offspring D) are usually beneficial to the organism
A) Each cell has pairs of chromosomes and the cells are usually genetically identical. B) Each cell has half the normal number of chromosomes and the cells are usually genetically different. C) Each cell has pairs of chromosomes and the cells are usually genetically different. D) Each cell has half the normal number of chromosomes and the cells are usually genetically identical.
A) have a resistance to different antibiotics B) synthesize the same proteins and enzymes as the entire colony is cloned from the original C) replicate different numbers of genes D) express adaptations unlike (different than) those of the other cells
A) decrease her ability to provide essential nutrients to an embryo B) affect the production of eggs C) make fertilization impossible D) make carrying a fetus impossible
A) estrogen B) ovary C) placenta D) progesterone
A) provide plenty of testosterone for her well-being B) carry progesterone and fool the mother's body into thinking it is already pregnant C) are made up of nutrient-rich sugars D) are easily digestable
A) causing mutations in the bacteria B) inserting part of their DNA into the bacterial cells C) producing toxins that compete with bacterial toxins D) engulfing (devouring) and digesting the bacteria whole
A) automatically causes AIDS B) provides immediate immunity to other diseases C) it takes a very long time to begin injecting its viral RNA code into the hosts' cells D) hijacks cells into making more viruses leaving the host defenseless to disease |